As the four heroes of Netflix's MCU come together on Marvel's The Defenders — Jessica Jones, Luke Cage, Iron Fist and Daredevil — the scope of what they're fighting against becomes clear. The Hand has always been a global organization whose reach extends across time, and even space dimensions when it comes to K'un Lun. And though we've learned a decent amount about this shadowy organization, who exactly is in charge has not been clear. Now we know, as the five fingers of the Hand were...